David bon nell



D; lBONNELLl Grain Drier. A No. 82,589. l l Patented Sept. 29, 1868.

Wmwef! @ww Www @MM N. PETERS. PHO0-LTHOGRAPNEE WASHINGTON DAVID BONNELL, or oswaeo, NEW YORK.-

Lenm Patent No. 82,589, dazed September 29, 186s.

IMPROVEMENT IN GRAIN-l)Ell-:RS.A

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'ro-ALL WHoM 1T MAY'G'ONCERN:

Be it known thatI, DAVID BONNELL, of the city and county of Oswego, `State of New York, have invented certain new and useful Improvements in Machines for Drying and -Cooling Grain, Sie.; and I do hereby declare the following description and accompanying drawings are suiicient to enableV anypersou skilledin the artor science to which it most nearly appertains to make and use my said invention or improvements without further invention or experiment. l

The nature of my invention and improvements consists in the peculiar construction and arrangement. of devices for drying grain, described in the following specifica-tion, and represented in the drawings.

In the accompanyingl drawingsl Figure 1 -is a plan or top view.

Figure fl,A one end, showing thc belts `which operate the several parts of the machine. A

v Figure 3 is a section on the line z z of figlia.V

Figure 4 is the rear side.

Figure 5 is a cross-section of. the dryingcylinder, with air-box that supplies heated air to the cylinder.

In these drawings, A A are the six posts of the' frame, connected by the end girders Al A1, top rails A2 A2, and by the side bars A5 A5, top bar A4, and bottom har A5, which are all firmly fastened together, making -a strong frame. Y

The shaft B is arranged toturn in proper boxes fastened to the posts A, and maybe provided witha gear,

- or fast and loose pulleys,` for avbelt to turn it from some. moving-power.

The pulley B1, on the shaft B, has several grooves in it, from one of whiclrthc band Bg turns the pulley B3 on the drying-cylinder shaft, which turns in boxes fastened to the frame.'

The drying-'cylinder C is a skeleton-frame, covered with woven-wire or perforated sheet metal, open at each end for the grain to enter and passthrough. This cylinder should hc providedwith loatson the inside, arrangedspirally or otherwise, so a's to lift or carry up tfie grain as the cylinder is turned, and let, it fall or slide off of the loat, and, at the same time, leave a. vacant space under or behind the iroat, into whichl the hot air can pass with very little resistance, and mix with the grain as it falls from the oat`,'and dry it. very fast` This construction and arrangement allow the" hot air to enter the cylinder with but slight resistance from the grain inside, which is a very great advantage.

To supply the grain to the cy'linder C, I fasten tzhe hopper C" to the top of the frame,- with a. spout, O2, to leadthe grain into the cylinder. -And, to graduate the supply of grain, I put a. spiral .conveye'r,'C3,"in the 'bottom of the hopper, with a. pulley, D, and hand, D, to turn the conveyer, and bring'thegrain to the spout.

The cylinder C is inclined, so that thevgrain which enters the upper end shall descend andlpasu's out at the lower end into the spout D, which conducts 'it-ton to the inclined screen D3, which is agitated by the bell-crank worked by the rod El from the crank E2 on the shaft B. The screen D3 is open at thetop, and works in the box F, into which a blast of cold 'air is driv'en, which passes up through the perforated sheet-metal or wire screen amongst the grain, to cool it, and carry olf Sonie of the moisture, should any remain in the g'rai with the caloric, as it isa well-known law of-nature, that if the temperature of a body containing'moi'sture is lowered, a portion of the moisture goes off with the caloric. The motion of the screen D3 shakes -the grain o' at-the lower end into the conveyer-trough F1', where the conveyer F2 c onveys it to Vthe opposite end of the machine, and it'pa-sses out through the opening F3. While passing through the conveyer-trough Fl, it is subjected to a blast of cold air from the pipe G. The conveyor-shaft has the pulley G1 on it,lfor the hand G2, from the pulley B1, to turn the convey'er. v

To supply hot lair to the cylinder C, I make a furnace, H, with door, H', grate, H2, and ash-pit, H3, with a proper Achimney or flue, to convey away the smoke, with an opening in the rear to'admitscold ai'r, which passes up in the furnace, and is heated 'and drawn into the fan I on the side of the'furuace, vand forced by the fan` through the pipe II into the box I, right under the cylinder C, which box has long openings through the top, through which the hot air passes into the cylinder C, which openings may be opened and closed by the slide I3,

worked by the stem I. The top of the box I2 is curved, and turned up each -side of the cylinder as high as the centre of the cylinder C, to compel the hot air to p'ass into the cylinder C ,amongst the grain.

The shaft J of the fan I turns inboxes on the grders, and is provided with a pulley, J1, with a band, J2, to the pulley J3 on the shaft B.

I make a second fan, K, on the shaft J, to blow cold air through the pipe G to the conveyer Fiend through the branch-pipe K1, under the screen D3, to cool the grain as it passes over the screen in the process of drying. Afterlthe anthracite coal on the furnace-grate gets to burning clearly, the chimney which conveyed away the smoke may be closed, and the gases escaping from the re drawn into the fan and blown into the grain.

I claim- 1. The drying-cylinder C, supplied with heated air, in combination with the cooling-screen D3, supplied with cold air, substantially as described, for the purposes set forth.

2. And, in combination with'the drying-cylinder C and cooling-screen D3, the conveyer, supplied with cold air, as described, for the purposes set forth. Y

3. And, in combination with the drying-cylinder, coolingscreen, and conveyer, arranged as shown and described, the furnace and fansfor supplying hot and cold air, substantially as described, for the purposes set forth.

DAVID BONNELL.

Witnesses:

A. H. CRozIER, GEO. W. BURT.. 

